Anaplasmosis Statistics - Minnesota Dept. of Health

Anaplasmosis Statistics

 In 2016, 733 confirmed or probable cases of anaplasmosis (13.4 cases per 100,000 population) were reported, up from the 613 cases reported in 2015. Despite annual fluctuations in reported cases, the overall trend is an increase in yearly case totals over time. Four hundred forty-nine (61%) cases reported were male. The median age of cases was 59 years (range, 2 to 97 years), 10 years older than the median age of Lyme disease cases. As is typical, most cases had illness onsets during the summer months, with 59% of cases reporting illness onsets in June and July. In 2016, 203 (28%) cases were hospitalized at some point for their infection, with a median duration of 4 days (range, 1 to 22 days).

On this page:
Charts and graphs
Annual summaries
National Statistics

Charts and Graphs


Most anaplasmosis cases report likely exposure to blacklegged ticks in the same east-central and north-central Minnesota counties where the risk of Lyme disease is greatest.

Annual Summary Statistics

National Statistics

Updated Tuesday, 16-Jan-2018 08:47:30 CST